Panama redwood
— Noun
– English
～ hard heavy red wood of a quira tree
Panama redwood
— Noun
– English
～ large erect shrub of Colombia having large odd-pinnate leaves with large leaflets and axillary racemes of fragrant yellow flowers
point of reference
— Noun
– English
～ an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"
paraboloid reflector
— Noun
– English
～ a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam